GitHub - sbkn/Flv2Mp3: A simple Frontend (GTK) for ffmpeg designed to (only !) transform video files into mp3's with a certain bitrate and edit meta data
flv2mp3/README.md at master · hacksparrow/flv2mp3 · GitHub
FLV to MP3 Converter - Apps on Google Play
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FLV2MP3 Reviews - 3 Reviews of Flv2mp3.by | Sitejabber